1 /* 2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 /* 24 */ 25 package org.graalvm.compiler.core.test.deopt; 26 27 import java.util.concurrent.CountDownLatch; 28 29 import org.junit.Assert; 30 import org.junit.Assume; 31 import org.junit.Test; 32 33 import org.graalvm.compiler.core.common.GraalOptions; 34 import org.graalvm.compiler.core.test.GraalCompilerTest; 35 36 import jdk.vm.ci.code.InstalledCode; 37 38 public final class SafepointRethrowDeoptTest extends GraalCompilerTest { 39 40 private static final Object RETURN_VALUE = "1 2 3"; 41 private static final RuntimeException BREAK_EX = new RuntimeException(); 42 private static final RuntimeException CONTINUE_EX = new RuntimeException(); 43 private static volatile int terminate; 44 private static volatile int entered; 45 46 public static Object execute() { 47 entered = 1; 48 for (;;) { 49 try { 50 if (terminate != 0) { 51 throw BREAK_EX; 52 } else { 53 throw CONTINUE_EX; 54 } 55 } catch (RuntimeException e) { 56 if (e == BREAK_EX) { 57 break; 58 } else if (e == CONTINUE_EX) { 59 continue; 60 } 61 throw e; 62 } 63 } 64 return RETURN_VALUE; 65 } 66 67 @Test 68 public void test() { 69 Assume.assumeTrue(GraalOptions.GenLoopSafepoints.getValue()); 70 synchronized (SafepointRethrowDeoptTest.class) { 71 // needs static fields 72 terminate = 1; 73 74 InstalledCode installed = getCode(getResolvedJavaMethod("execute")); 75 76 terminate = 0; 77 entered = 0; 78 CountDownLatch cdl = new CountDownLatch(1); 79 Thread t1 = new Thread(() -> { 80 try { 81 cdl.await(); 82 while (entered == 0) { 83 /* spin */ 84 } 85 installed.invalidate(); 86 } catch (InterruptedException e) { 87 Assert.fail("interrupted"); 88 } finally { 89 terminate = 1; 90 } 91 }); 92 Thread t2 = new Thread(() -> { 93 cdl.countDown(); 94 Object result; 95 try { 96 result = installed.executeVarargs(); 97 } catch (Exception e) { 98 e.printStackTrace(); 99 Assert.fail("exception"); 100 return; 101 } 102 Assert.assertEquals(RETURN_VALUE, result); 103 }); 104 105 t1.start(); 106 t2.start(); 107 try { 108 t1.join(); 109 t2.join(); 110 } catch (InterruptedException e) { 111 Assert.fail("interrupted"); 112 } 113 } 114 } 115 }